Aerosol generating product

Abstract

The invention relates to the technical field of aerosol generation, and provides an aerosol generation product which comprises an aerosol generation matrix section and a functional section, the functional section is arranged at one end of the aerosol generation matrix section in the longitudinal direction and comprises a storage section, and a storage cavity is formed in the storage section; access holes are formed in the two longitudinal end faces of the storage section correspondingly and communicate with the storage cavity. In the puff-by-puff suction process, the storage cavity continuously temporarily stores and discharges the aerosol in a reciprocating manner, so that the amount of the sucked aerosol in each puff is consistent, the aerosol release consistency is improved, and the probability that the aerosol is repeatedly heated can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating product. Background Art

[0002] The aerosol-generating substrate segment can form an aerosol by ignition or by heating without burning. Taking the aerosol-generating substrate segment that is heated without burning as an example, the aerosol-generating substrate segment is heated by an external heat source so that the aerosol-generating substrate segment is just heated to a degree sufficient to emit an aerosol, and the aerosol-generating substrate segment does not burn. When used, the aerosol-generating substrate segment is heated to release the aerosol.

[0003] In the related art, the aerosol generated by the aerosol-generating matrix section is easily heated repeatedly, resulting in a poor taste problem. Summary of the invention

[0004] In view of this, embodiments of the present application hope to provide an aerosol generating product that can reduce the probability of the aerosol being repeatedly heated.

[0005] To achieve the above objectives, the present application provides an aerosol generating product, comprising:

[0006] Aerosol generating matrix segment;

[0007] The functional section is arranged at one end of the aerosol generating matrix section along the longitudinal direction, and the functional section includes a storage section, the storage section forms a storage cavity, and the two end faces of the storage section along the longitudinal direction are respectively formed with entry and exit holes, and the entry and exit holes are connected to the storage cavity.

[0008] In some embodiments, at least one end surface of the storage section along the longitudinal direction is a curved surface convex toward a direction away from the storage cavity.

[0009] In some embodiments, the aerosol generating product includes a wrapping layer, the periphery of the aerosol generating substrate segment and the periphery of the functional segment are both wrapped with the wrapping layer, and the wrapping layer has air inlet holes formed at a portion corresponding to the storage segment.

[0010] In some embodiments, a portion of the outer peripheral surface of the storage segment is divided into an abutment portion and a spacer portion, the spacer portion is located on one side of the abutment portion close to the aerosol generating substrate segment in the longitudinal direction, the abutment portion is annular and abuts against the wrapping layer, the spacer portion and the wrapping layer are spaced from each other to form a accommodating space, and the air inlet is located at the accommodating space to communicate with the accommodating space.

[0011] In some embodiments, the storage section includes a cover body and a cavity, the cavity has an open mouth at one end longitudinally away from the aerosol generating substrate section, the cover body closes the open mouth to jointly define the storage cavity, the cover body and the cavity are both provided with the entry and exit holes on their longitudinal end faces, at least part of the outer circumference of the cover body is the abutment portion, and at least part of the outer circumference of the cavity is the spacing portion, and the lateral dimension of the portion of the cover body forming the abutment portion is larger than the lateral dimension of the cavity.

[0012] In some embodiments, the storage section includes a cylindrical shell and two end plates, the cylindrical shell has open openings at both ends along the longitudinal direction, the two end plates respectively close the two open openings to form the storage cavity, the two end plates are both arc-shaped structures convex away from the cylindrical shell, the end plates are formed with the inlet and outlet holes, the outer peripheral surface of the cylindrical shell is the abutment portion, and the outer peripheral surface of the end plate close to the aerosol generating matrix section is the spacer portion.

[0013] In some embodiments, the distance between the air inlet hole and the end surface of the aerosol generating substrate segment away from the functional segment is 17 mm to 24.5 mm.

[0014] In some embodiments, the functional segment includes a filtering segment, which is located at one end of the storage segment away from the aerosol generating matrix segment in the longitudinal direction. The aerosol generating matrix segment and the filtering segment are both cylindrical structures, and the storage segment is a rotating body structure. The aerosol generating matrix segment, the filtering segment and the storage segment are coaxially arranged, and the longitudinal direction is the central axis direction of the aerosol generating matrix segment, the filtering segment and the storage segment or a direction parallel to the central axis.

[0015] In some embodiments, the two air inlet holes constitute an air inlet group, and the two air inlet holes of the air inlet group are arranged along a straight line perpendicular to the longitudinal direction.

[0016] In some embodiments, the functional segment includes a filtering segment, which is located at one end of the storage segment away from the aerosol generating substrate segment in the longitudinal direction, and the storage segment is in contact with or spaced from the filtering segment at an end surface close to the filtering segment in the longitudinal direction.

[0017] In some embodiments, the storage section is in contact with or spaced from the aerosol-generating substrate section along the longitudinal direction near the end surface of the aerosol-generating substrate section.

[0018] In some embodiments, the aerosol-generating substrate segment is formed with an air channel, and the air channel runs through at least one end surface of the aerosol-generating substrate segment along the longitudinal direction.

[0019] In some embodiments, the area of ​​the flow cross section of the air passage is equal to the area of ​​the flow cross section of the inlet and outlet holes.

[0020] In some embodiments, a flavoring substance is disposed in the storage cavity.

[0021] In some embodiments, the number of access holes on at least one end surface of the storage section along the longitudinal direction is greater than 2 and less than 100.

[0022] In some embodiments, the hydraulic diameter of the access hole is 0.1 mm to 2 mm; and / or,

[0023] The roughness of the cavity wall of the storage cavity is no greater than 5 μm.

[0024] In the aerosol generating product provided in the embodiment of the present application, the aerosol generating matrix segment is heated to generate aerosol, and during the process of the user taking puffs one by one, in the puff interval between each puff, the aerosol generated by the aerosol generating matrix segment can enter the storage cavity through the upstream access hole, and when the next puff is taken, the negative pressure drives the aerosol temporarily stored in the storage cavity to be discharged from the storage cavity through the downstream access hole. In this way, during the process of taking puffs one by one, the storage cavity continuously and reciprocally temporarily stores and discharges the aerosol, so that the amount of aerosol in each puff is relatively consistent, thereby improving the consistency of aerosol release and reducing the probability of the aerosol being repeatedly heated. Each puff of aerosol inhaled is "fresh", which can effectively solve the taste difference caused by repeated heating of the aerosol. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a first aerosol generating product in one embodiment of the present application;

[0026] Figure 2 for Figure 1 A cross-sectional view of the first aerosol-generating article shown;

[0027] Figure 3 Schematic diagram of the structure of a second aerosol generating product in one embodiment of the present application;

[0028] Figure 4 Schematic diagram of the structure of a third aerosol generating product in one embodiment of the present application;

[0029] Figure 5 Schematic diagram of the structure of a fourth aerosol generating product in one embodiment of the present application;

[0030] Figure 6 Schematic diagram of the structure of a fifth aerosol generating product in one embodiment of the present application;

[0031] Figure 7 Schematic diagram of the structure of the sixth aerosol generating product in one embodiment of the present application.

[0032] Description of Reference Numerals

[0033] Aerosol generating matrix section 1; airway 1a; functional section 2; storage section 21; storage cavity 21a; access hole 21b; upstream access hole 21ba; downstream access hole 21bb; abutment portion 21c; spacer 21d; accommodating space 21da; cover body 211; cavity 212; cylindrical shell 213; end plate 214; filter section 22; wrapping layer 3; air inlet 3a; flavoring substance 4. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0035] In the present application, a plurality includes two and more than two. The unit "mm" is millimeter. The unit "μm" is micrometer. The unit "℃" is Celsius.

[0036] See also Figure 1 and Figure 2 The embodiment of the present application provides an aerosol generating product, which includes an aerosol generating matrix segment 1 and a functional segment 2. The functional segment 2 is arranged at one end of the aerosol generating matrix segment 1 along the longitudinal direction. The functional segment 2 includes a storage segment 21, and the storage segment 21 forms a storage cavity 21a. The two end surfaces of the storage segment 21 along the longitudinal direction are respectively formed with entry and exit holes 21b, and the entry and exit holes 21b are connected to the storage cavity 21a.

[0037] In an embodiment of the present application, the aerosol generating matrix segment 1 is used to generate aerosol by heating. Exemplarily, the aerosol generating matrix segment 1 can be used to generate aerosol by heating without burning. That is, the aerosol generating matrix segment 1 is heated below the ignition point to generate aerosol. The aerosol generating matrix segment 1 does not burn during the process of generating aerosol. In some application scenarios, the aerosol generating matrix segment 1 can be used to generate aerosol by ignition. The aerosol generating matrix segment 1 of the present application is more used to generate aerosol by heating without burning.

[0038] The aerosol generating product is used for the user to inhale the aerosol generated by the aerosol generating matrix segment 1. For example, the user can inhale the aerosol by inhaling, and the aerosol generated by the aerosol generating matrix segment 1 is delivered to the user under the action of the suction negative pressure. That is, the end where the functional segment 2 is located is the downstream.

[0039] The inlet and outlet holes 21b are used for airflow to enter or exit the storage section 21. Exemplarily, the aerosol generated by the aerosol generating substrate section 1 flows longitudinally to the inlet and outlet holes 21b near the aerosol generating substrate section 1, enters the storage section 21 from the inlet and outlet holes 21b near the aerosol generating substrate section 1, and then exits the storage chamber 21a through the inlet and outlet holes 21b far from the aerosol generating substrate section 1.

[0040] For ease of description, in this application, the end surface of the storage section 21 in the longitudinal direction close to the aerosol generating substrate section 1 and the inlet and outlet hole 21b thereon are respectively defined as the upstream end surface and the upstream inlet and outlet hole 21ba. The end surface of the storage section 21 in the longitudinal direction away from the aerosol generating substrate section 1 and the inlet and outlet hole 21b thereon are respectively defined as the downstream end surface and the downstream inlet and outlet hole 21bb.

[0041] In the aerosol generating product provided in the embodiment of the present application, the aerosol generating matrix segment 1 is heated to generate aerosol. During the process of puffing by the user, in the puffing interval of each puff, the aerosol generated by the aerosol generating matrix segment 1 can enter the storage chamber 21a through the upstream access hole 21ba, and when the next puff is taken, the negative pressure drives the aerosol temporarily stored in the storage chamber 21a to be discharged from the storage chamber 21a through the downstream access hole 21bb. In this way, during the puffing process, the storage chamber 21a continuously and reciprocally temporarily stores and discharges the aerosol, so that the amount of aerosol in each puff is relatively consistent, thereby improving the consistency of aerosol release and reducing the probability of the aerosol being repeatedly heated. Each puff of aerosol inhaled is "fresh", which can effectively solve the taste difference caused by repeated heating of the aerosol.

[0042] The aerosol-generating article may be for use with an aerosol-generating device having a heating element.

[0043] The aerosol generating device provided in the embodiment of the present application is used for the aerosol generating product in any one of the embodiments of the present application. The aerosol generating device heating element is used to heat the aerosol generating substrate segment 1 to generate aerosol.

[0044] The heating methods of the heating element include, but are not limited to, resistance heating, electromagnetic heating, infrared heating, microwave heating or laser heating, etc. The heat transfer in the form of thermal convection means that the heating element is not in contact with the aerosol generating matrix segment 1, the heating element first heats the air, and then the hot air bakes and heats the aerosol generating matrix segment 1. Heat conduction means that the heating element is in contact with the aerosol generating matrix segment 1 and conducts heat to the aerosol generating matrix segment 1. Exemplarily, resistance and electromagnetic heating mainly transfer heat to the aerosol generating matrix segment 1 in the form of thermal conduction or thermal convection. Infrared heating, microwave heating or laser heating mainly transfer heat to the aerosol generating matrix segment 1 in the form of thermal radiation. That is, the heating element can heat the aerosol generating matrix segment 1 in one or more of the three forms of thermal conduction, thermal convection and thermal radiation.

[0045] In one embodiment, please refer to Figure 2, the aerosol generating matrix segment 1 is formed with an air channel 1a, and the air channel 1a runs through at least one end surface of the aerosol generating matrix segment 1 in the longitudinal direction. For example, the air channel 1a runs through one end of the aerosol generating matrix segment 1 in the longitudinal direction. For another example, the air channel 1a runs through both ends of the aerosol generating matrix segment 1 in the longitudinal direction. The airflow can flow from one end of the aerosol generating matrix segment 1 along the air channel 1a to the other end of the aerosol generating matrix segment 1. The aerosol can flow more smoothly through the air channel 1a, the aerosol can be delivered in an orderly manner, the aerosol flow resistance is smaller, the controllability is good, the aerosol extraction efficiency is effectively improved, and the inhalation experience is improved.

[0046] In one embodiment, please refer to Figures 2 to 7 The air channel 1a is a straight air channel 1a extending in a straight line along the longitudinal direction. The straight air channel 1a is easy to form and can reduce the difficulty of manufacturing. The flow resistance of the airflow in the straight air channel 1a is relatively small.

[0047] In one embodiment, please refer to Figures 2 to 7 , the number of airways 1a can be multiple.

[0048] In some embodiments, the end face of the aerosol generating matrix segment 1 away from the functional segment 2 in the longitudinal direction can be self-sealed or closed in cooperation with the aerosol generating device. Exemplarily, in some embodiments, the heating element can seal the end face of the aerosol generating matrix segment 1 away from the functional segment 2 in the longitudinal direction. In other embodiments, the end face of the aerosol generating matrix segment 1 away from the functional segment 2 in the longitudinal direction can be sealed by a blocking element. The outer peripheral surface of the aerosol generating matrix segment 1 is wrapped with a wrapping layer 3, so that it is difficult for the outside air to enter the aerosol generating matrix segment 1 through the end face of the aerosol generating matrix segment 1 away from the functional segment 2 in the longitudinal direction, so that the aerosol generating matrix segment 1 is heated in a low oxygen or even oxygen-free environment. The aerosol generating product is always in an oxygen-free or low oxygen state during the suction process. By blocking or reducing the entry of air into the aerosol generating matrix segment 1, the heat dilution brought by the air can be reduced, the heating efficiency can be improved, and the temperature field of the heating chamber of the heating element can be kept stable. It can also reduce the participation of oxygen to further reduce the generation of undesirable substances and reduce the probability of carbonization of the aerosol generating matrix segment 1.

[0049] In one embodiment, the aerosol generating substrate segment 1 is an integrally formed structure.

[0050] For example, the aerosol generating matrix segment 1 can be made into an integral structure by injection molding, die casting or extrusion, etc. In this way, the aerosol generating matrix segment 1 is an integral medium during use, such as when heated or after heating, and is not prone to disintegration and falling.

[0051] Extrusion molding refers to a processing method in which the material passes through the interaction between the barrel and the extrusion screw of the extrusion device, the material is plasticized by heat and pushed to the discharge port by the extrusion screw, and is formed into an aerosol-generating matrix segment 1 with a preset cross-sectional shape and corresponding pores through an extrusion die such as a die. For example, the air channel 1a can be formed by a die such as a die.

[0052] It should be noted that micropores may exist inside the aerosol generating matrix segment 1. For example, for the aerosol generating matrix segment 1 of the particle combination, the gaps between the particles constitute micropores. However, the airway 1a described in the present application is different from the micropores. The airway 1a described in the present application is a hole in the macroscopic sense, and the micropores are holes in the microscopic sense. The flow cross-sectional area and length of the airway 1a are much larger than those of the micropores. The airway 1a is mainly formed by design and processing, such as by die processing. Therefore, the flow cross-sectional area and length of the airway 1a can be changed according to design requirements, while the size of the micropores is determined by the gaps between the particles. For example, the material is a granular material, and the aerosol generating matrix segment 1 formed by extrusion of the material has micropores. The flow cross-sectional area and length of the micropores are naturally formed by the extrusion process and the material components. The micropores can be formed by a certain expansion after the material feeding tube flows out of the die.

[0053] In one embodiment, please refer to Figure 2 , the area of ​​the flow cross section of the air channel 1a is equal to the area of ​​the flow cross section of the inlet and outlet hole 21b. In this way, the flow rate of the aerosol released by the air channel 1a is matched with the flow rate of the aerosol flowing through the inlet and outlet hole 21b, so that the aerosol can flow smoothly in the radial direction, and the efficiency of the aerosol generation matrix section 1 in releasing the aerosol is basically the same as the efficiency of the storage section 21 in storing the aerosol.

[0054] In one embodiment, each air passage 1a may correspond to an upstream inlet and outlet hole 21ba and a downstream inlet and outlet hole 21bb, so as to facilitate smooth flow of air.

[0055] In one embodiment, please refer to Figure 7 The storage cavity 21a is provided with a flavoring substance 4. The flavoring substance 4 can not only enrich or compensate the flavor, but also reduce the temperature of the aerosol by absorbing heat and releasing the flavor.

[0056] The flavoring substance 4 generally refers to a substance contained in a substance taken into the oral cavity that causes a sensory organ such as the tongue to produce a sensory impression. Sensory impressions include physical sensations, chemical sensations, and psychological sensations. Exemplarily, the flavoring substance 4 can be a fragrance substance, and the fragrance substance includes but is not limited to rose pollen or particles, tangerine peel powder or particles, etc. For example, during the temporary storage process of the aerosol in the storage chamber 21a, the aerosol undergoes molecular surface concentration with the fragrance substance, and is taken out during the next puff, thereby playing the role of fragrance compensation, improving the taste, and increasing the characteristic aroma.

[0057] The flavoring substance 4 can contact with the aerosol and absorb the heat of the aerosol to release the flavor, thereby cooling the aerosol.

[0058] Exemplarily, the flavoring substance 4 can be assembled into the storage cavity 21a by injection, coating or filling.

[0059] In one embodiment, please refer to Figures 1 to 7 The aerosol generating product includes a wrapping layer 3, and the periphery of the aerosol generating matrix segment 1 and the periphery of the functional segment 2 are both wrapped with the wrapping layer 3. The wrapping layer 3 is formed with an air inlet 3a at the position corresponding to the storage segment 21. Specifically, the air inlet 3a penetrates the two lateral surfaces of the wrapping layer 3. The air inlet 3a is used to introduce external airflow, such as air, into the position where the storage segment 21 is located. The external air and aerosol can form a vortex at the upstream end surface of the storage segment 21, and are sucked into the storage cavity 21a under the action of negative pressure and temporarily stored in the storage cavity 21a, thereby improving the extraction efficiency of the aerosol. Since the air inlet 3a is located downstream of the aerosol generating matrix segment 1, it can also reduce the probability of air and the aerosol generating matrix segment 1 reacting to generate undesirable substances during the heating process, thereby improving the purity of the aerosol.

[0060] It should be understood that the portion of the wrapping layer 3 corresponding to the storage section 21 refers to the portion of the wrapping layer 3 surrounding the outer periphery of the storage section 21 .

[0061] It should be noted that the transverse direction is perpendicular to the longitudinal direction. Taking the aerosol generating substrate segment 1 as a cylindrical shape as an example, the transverse direction is the radial direction.

[0062] For some examples, see Figures 2 to 5 At least one end surface of the storage section 21 along the longitudinal direction is a plane.

[0063] In one embodiment, please refer to Figures 2 to 7 At least one end surface of the storage section 21 along the longitudinal direction is a curved surface convex in a direction away from the storage cavity 21a. Figures 2 to 5 , one end surface of the storage section 21 along the longitudinal direction is a curved surface convex toward the direction away from the storage cavity 21a. Figure 6 and Figure 7 The two end faces of the storage section 21 along the longitudinal direction are arc surfaces convex in the direction away from the storage cavity 21a. With such a design, the flow cross section of the flow channel defined by the arc surface gradually changes, for example, gradually increases or gradually decreases, so that a high-speed airflow is formed in the inlet and outlet holes 21b located at the convex part of the arc surface and a negative pressure is generated, so that the airflow around the convex part of the arc surface is attracted and gathered to the convex part of the arc surface, accelerating the mixing and / or discharge of the airflow.

[0064] For example, in one embodiment, please refer to Figure 6 and Figure 7, the upstream end face is an arc surface convex in the direction away from the storage chamber 21a. In this way, the flow cross-section of the flow channel defined by the upstream end face gradually increases along the flow direction of the airflow. In other words, the flow channel defined by the upstream end face is an expansion flow channel. Under the Venturi effect, the upstream end face can accelerate the external airflow, such as air and aerosol, to mix at the upstream end face. The external air and aerosol form mixed deposition and particle collision, which can not only increase the airflow, but also quickly reduce the temperature of the aerosol, thereby improving the "hot mouth" phenomenon when the user inhales the aerosol. Exemplarily, under the Venturi effect of the storage section 21, the temperature of the aerosol is reduced from 185°C to 45°C.

[0065] Exemplarily, the mixing ratio of outside air to aerosol can be 5: 1 to 10: 1. The intake volume of outside air can be controlled by adjusting the hydraulic diameter and number of the air inlet holes 3a, wherein the corresponding relationship among the hydraulic diameter of the air inlet holes 3a, the flow rate of outside air and the suction pressure can be directly calculated using the "Bernoulli equation".

[0066] In one embodiment, please refer to Figures 2 to 7 , the downstream end face is a curved surface convex in the direction away from the storage chamber 21a. In this way, the flow cross section of the flow channel defined by the downstream end face gradually decreases along the flow direction of the airflow. In other words, the flow channel defined by the upstream end face is a contraction flow channel. When inhaling, the downstream end face and the downstream inlet and outlet holes 21bb can increase the discharge velocity of the mixed airflow of aerosol and air.

[0067] In one embodiment, the center point of the curved surface may be on the center line of the aerosol generating article extending in the longitudinal direction. Since the fluid flow rate is faster as it is closer to the center line, it is convenient for the airflow to gather toward the center.

[0068] It should be noted that the center line of the aerosol generating product extending in the longitudinal direction refers to the line connecting the geometric center points of the two end surfaces of the aerosol generating product in the longitudinal direction.

[0069] In one embodiment, the radius of curvature of the curved surface is 3.5 mm to 8.0 mm. For example, the radius of curvature of the curved surface is 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm or 8 mm, etc. In this way, it can ensure that the outside air and the aerosol can be fully mixed at the curved surface, and the discharge of the airflow in the storage cavity 21a can be accelerated.

[0070] In one embodiment, please refer to Figures 2 to 7 , the number of inlet and outlet holes 21b of at least one end surface of the storage section 21 along the longitudinal direction is greater than 2 and not greater than 100. Exemplarily, in one embodiment, the number of upstream inlet and outlet holes 21ba is 3, 10 or 100, etc. In one embodiment, the number of downstream inlet and outlet holes 21bb is 3, 10 or 100, etc.

[0071] In some embodiments, the shape of the flow cross section of the inlet and outlet hole 21b includes but is not limited to a circle, an ellipse or a polygon (such as a square, a prism or a pentagon, etc.).

[0072] In one embodiment, the hydraulic diameter of the inlet and outlet holes 21b is 0.1 mm to 2 mm. For example, the hydraulic diameter of the inlet and outlet holes 21b is 0.1 mm, 0.5 mm, 1 mm or 2 mm, etc. If the hydraulic diameter of the inlet and outlet holes 21b is moderate, the flow cross-sectional area of ​​the inlet and outlet holes 21b is moderate, which facilitates the airflow to enter or exit the storage chamber 21a, so that the storage chamber 21a can play a good role in temporarily storing aerosols.

[0073] It should be noted that the hydraulic diameter refers to the ratio of four times the flow cross-sectional area to the perimeter. The flow cross-section refers to the cross-section taken by the streamline cluster perpendicular to the fluid. For example, if the shape of the flow cross-section of the inlet and outlet hole 21b is a regular quadrilateral, the hydraulic diameter is the ratio of four times the area of ​​the flow cross-section of the inlet and outlet hole 21b of the regular quadrilateral to the perimeter of the regular quadrilateral. For another example, if the shape of the flow cross-section of the inlet and outlet hole 21b is circular, the hydraulic diameter is the diameter of the circular inlet and outlet hole 21b.

[0074] In one embodiment, the roughness of the cavity wall surface of the storage cavity 21a is not greater than 5 μm. Exemplarily, the roughness of the cavity wall surface of the storage cavity 21a is 1 μm, 2 μm, 3 μm, 4 μm or 5 μm, etc. In this way, it is avoided that the roughness of the cavity wall surface of the storage cavity 21a is too large, resulting in excessive viscosity between the cavity wall surface of the storage cavity 21a and the airflow, causing the airflow (including external air and / or aerosol) to be stagnant and the airflow resistance to be too large.

[0075] In one embodiment, the material of the storage section 21 has a temperature tolerance of not less than 150° C. The material of the storage section 21 has a temperature tolerance of 150° C. or 200° C., etc. For example, the heating temperature of the aerosol generating substrate section 1 is about 300° C., the temperature of the aerosol is generally about 100° C., and the material of the storage section 21 has a temperature tolerance of not less than 150° C., so that deformation of the storage section 21 can be avoided.

[0076] The tolerance temperature of the material of the storage section 21 refers to the temperature at which the storage section 21 does not change in shape when heated.

[0077] In one embodiment, please refer to Figures 2 to 7 The outer peripheral surface of the storage section 21 is divided into an abutment portion 21c and a spacer portion 21d, and the spacer portion 21d is located on the side of the abutment portion 21c in the longitudinal direction close to the aerosol generating substrate segment 1. That is, the spacer portion 21d is located upstream of the abutment portion 21c.

[0078] The abutment portion 21c is annular and abuts against the wrapping layer 3. In this way, the abutment portion 21c abuts against the wrapping layer 3 to seal the gap between the inner circumference of the wrapping layer 3 and the abutment portion 21c. In other words, there is no gap between the abutment portion 21c and the inner circumference of the wrapping layer 3. The airflow cannot pass between the abutment portion 21c and the inner circumference of the wrapping layer 3.

[0079] The spacer 21d and the wrapping layer 3 are spaced from each other to form a storage space 21da, and the air inlet 3a is located at the storage space 21da to communicate with the storage space 21da. In this way, the outside air from the air inlet 3a enters the storage space 21da and mixes with the aerosol. Since the airflow cannot pass between the abutting portion 21c and the inner peripheral surface of the wrapping layer 3, the airflow enters the storage cavity 21a through the upstream inlet and outlet holes 21ba.

[0080] Exemplarily, the spacer 21d is ring-shaped.

[0081] In one embodiment, please refer to Figures 2 to 5 The storage section 21 includes a cover 211 and a cavity 212. The cavity 212 has an open opening at one end in the longitudinal direction away from the aerosol generating substrate section 1. The cover 211 closes the open opening to define a storage cavity 21a together. The cover 211 and the cavity 212 are formed with access holes 21b on their end faces in the longitudinal direction. At least part of the outer peripheral surface of the cover 211 is abutment 21c, and at least part of the outer peripheral surface of the cavity 212 is a spacing portion 21d. The size of the part of the cover 211 where the abutment 21c is formed is larger than the size of the cavity 212 in the transverse direction. In this way, the abutment 21c on the cover 211 abuts against the wrapping layer 3. A receiving space 21da is formed between the spacing portion 21d on the cavity 212 and the wrapping layer 3.

[0082] Exemplarily, in one embodiment, the cover body 211 includes a cover plate, an annular shell and a transition shell, the annular shell and the transition shell are both hollow structures with openings at both ends in the longitudinal direction, the diameter of the annular shell is larger than the diameter of the cavity 212, the outer peripheral surface of the annular shell is the abutment portion 21c, the two ends of the transition shell in the longitudinal direction are respectively connected to the annular shell and the surrounding parts of the opening of the cavity 212, and the cover plate closes the opening of the annular shell away from the transition shell. Exemplarily, the transition shell can form a step surface perpendicular to the radial direction, so that the large diameter end of the transition shell is connected to the annular shell, and the small diameter end of the transition shell is connected to the surrounding parts of the opening of the cavity 212.

[0083] In one embodiment, the cover 211 and the cavity 212 can be connected together by interference fit. The cover 211 and the cavity 212 can be independent structures, that is, the cover 211 and the cavity 212 can be manufactured separately. The cover 211, such as a transition shell, is inserted into the open mouth of the cavity 212, or the cover 211, such as a transition shell, is sleeved on the outer periphery of the open mouth of the cavity 212. In this way, the transition shell and the cavity 212 are connected by interference fit.

[0084] Exemplarily, in one embodiment, the air inlet 3a is located at the transition shell. Preferably, the air inlet 3a is located at the connection between the transition shell and the cavity 212.

[0085] For example, in one embodiment, please refer to Figures 2 to 5 The cover body 211 protrudes along the longitudinal end surface, such as a cover plate, toward the side away from the aerosol generating substrate segment 1.

[0086] Illustratively, in one embodiment, the end surface of the cavity 212 along the longitudinal direction is convex toward the side close to the aerosol generating substrate segment 1 or is flat.

[0087] In one embodiment, please refer to Figure 6 and Figure 7 The storage section 21 includes a cylindrical shell 213 and two end plates 214. Both ends of the cylindrical shell 213 in the longitudinal direction have open openings. The two end plates 214 respectively close the two open openings to form a storage cavity 21a. Both end plates 214 are arc-shaped structures protruding in the direction away from the cylindrical shell 213. The end plates 214 are formed with access holes 21b. The outer peripheral surface of the cylindrical shell 213 is the abutment portion 21c, and the outer peripheral surface of the end plate 214 close to the aerosol generating matrix section 1 is the spacing portion 21d. The storage section 21 is roughly a rotating body structure with a central axis extending in the longitudinal direction. The outer peripheral surface of the cylindrical shell 213 can better fit the wrapping layer 3, and can form a good and stable support between each other.

[0088] In one embodiment, please refer to Figure 3 , the distance L1 between the spacer 21d and the wrapping layer 3 is 0.5mm to 2mm. Exemplarily, the distance L1 between the spacer 21d and the wrapping layer 3 is 0.5mm, 1mm, 1.5mm or 2mm, etc. In this way, the volume of the accommodating space 21da and the volume of the storage cavity 21a can be taken into account.

[0089] In one embodiment, please refer to Figure 3 , the distance L2 between the air inlet 3a and the end face of the aerosol generating matrix segment 1 away from the functional segment 2 is 17 mm to 24.5 mm. Exemplarily, the distance L2 between the air inlet 3a and the end face of the aerosol generating matrix segment 1 away from the functional segment 2 is 17 mm, 18 mm, 20 mm, 20.5 mm, 22 mm or 24.5 mm, etc. The distance between the air inlet 3a and the aerosol generating matrix segment 1 is moderate, which is convenient for the external air from the air inlet 3a to contact and mix with the aerosol quickly, and can also reduce the contact between the external air from the air inlet 3a and the aerosol generating matrix segment 1 as much as possible.

[0090] In one embodiment, please refer to Figure 1, the number of the air inlet holes 3a is greater than 2. The number of the air inlet holes 3a is a positive integer greater than 2. In this way, the amount of external air supply can be ensured through the multiple air inlet holes 3a.

[0091] In one embodiment, the hydraulic diameter of the air inlet 3a is 0.05 mm to 0.2 mm. The hydraulic diameter of the air inlet 3a is 0.05 mm, 0.1 mm, 0.15 mm or 0.2 mm, etc. In this way, the air inlet 3a has little effect on the structural strength of the wrapping layer 3, and the air intake of a single air inlet 3a is moderate.

[0092] It should be noted that the aerosol generating matrix segment 1 is a particle assembly, and micropores are formed between the particles of the particle assembly, that is, the gaps between the particles constitute micropores, and the micropores are connected to form micro airways connected to the airway 1a.

[0093] In the embodiment of the present application, the air channel 1a and the micropores can increase the surface area of ​​the aerosol generating matrix segment 1, facilitate heat transfer, and improve heating efficiency. The dielectric material of the aerosol generating matrix segment 1 releases aerosols when heated, and is collected in the air channel 1a through the gaps between the wall materials or the micro air channels. The aerosols released by the dielectric material exposed to the air channel 1a (i.e., the dielectric material located on the inner wall surface of the air channel 1a) can be directly released into the air channel 1a. The aerosols between adjacent air channels 1a can also circulate with each other through the micro air channels, and are transported to the downstream end where the functional segment 2 is located under the action of the suction negative pressure.

[0094] In one embodiment, please refer to Figure 2 and Figure 3 , two air inlet holes 3a constitute an air inlet group, and the two air inlet holes 3a of the air inlet group are arranged along a straight line perpendicular to the longitudinal direction. Exemplarily, the aerosol generating article is cylindrical, and the two air inlet holes 3a of the air inlet group are symmetrically arranged along the diameter line of the aerosol generating article.

[0095] In some embodiments, there are multiple air intake groups, and the multiple air intake groups are arranged at intervals along the circumference. In this way, external air can be introduced into each position of the storage section 21 in the circumference.

[0096] In one embodiment, please refer to Figures 2 to 7 The functional section 2 includes a filter section 22, which is located at one end of the storage section 21 in the longitudinal direction away from the aerosol generating substrate section 1. In other words, the filter section 22 is located downstream of the storage section 21. The filter section 22 is used to filter the aerosol.

[0097] For example, the filter section 22 can block substances of target particle size and can also adjust the inhalation resistance. For example, the filter section 22 can filter large-size particles similar to powdery substances. The aerosol filtered by the filter section 22 has a higher consistency in particle size and a more delicate taste.

[0098] The storage section 21 is in contact with or spaced from the filter section 22 along the longitudinal direction at the end surface close to the filter section 22. For example, see Figure 4 and Figure 5 The storage section 21 is in contact with the filter section 22 along the longitudinal direction at the end surface close to the filter section 22. The airflow discharged from the downstream inlet and outlet holes 21bb of the storage section 21 can quickly enter the filter section 22, and the taste is stronger. For another example, please refer to Figure 2 and Figure 3 , the end surface of the storage section 21 close to the filtering section 22 in the longitudinal direction is spaced from the filtering section 22. In this way, the gap between the end surface of the storage section 21 close to the filtering section 22 in the longitudinal direction and the filtering section 22 can provide a buffering effect, and the taste is softer.

[0099] In one embodiment, please refer to Figures 2 to 6 The functional section 2 includes a filtering section 22, which is located at one end of the storage section 21 in the longitudinal direction away from the aerosol generating substrate section 1. The aerosol generating substrate section 1 and the filtering section 22 are both cylindrical structures, and the storage section 21 is a rotating body structure. The aerosol generating substrate section 1, the filtering section 22 and the storage section 21 are coaxially arranged, and the longitudinal direction is the central axis direction of the aerosol generating substrate section 1, the filtering section 22 and the storage section 21 or a direction parallel to the central axis. In this way, the aerosol generated by the aerosol generating substrate section 1 can flow more smoothly in the longitudinal direction.

[0100] The central axis refers to the symmetry line of axially symmetrical figures and rotating figures.

[0101] In one embodiment, the storage section 21 is in contact with or spaced from the aerosol-generating substrate section 1 along the longitudinal direction near the end surface of the aerosol-generating substrate section 1. For example, see Figure 3 and Figure 5 The storage section 21 is in contact with the aerosol generating substrate section 1 along the longitudinal direction near the end surface of the aerosol generating substrate section 1. The aerosol generated by the aerosol generating substrate can directly enter the storage cavity 21a through the upstream inlet and outlet holes 21ba, reducing the distance that the aerosol generated by the aerosol generating substrate enters the storage cavity 21a. For another example, please refer to Figure 6 and Figure 7 , the end surface of the storage section 21 close to the aerosol generating substrate section 1 in the longitudinal direction is spaced from the aerosol generating substrate section 1. In this way, the gap between the end surface of the storage section 21 close to the aerosol generating substrate section 1 in the longitudinal direction and the aerosol generating substrate section 1 can provide a buffering effect and can also provide more space for aerosol and external air to mix.

[0102] In some embodiments, the filter segment 22 may be solid acetate fiber (see Figures 1 to 7) or hollow acetate fiber. Acetate fiber is a structure composed of filament bundles arranged side by side and spaced apart in the circumferential direction. Hollow acetate fiber means that the central area of ​​the filament bundle is hollow. Solid acetate fiber means that there are only gaps between the filament bundles and no hollowness. The filter segment 22 adopts the above structure to achieve directional filtration of harmful components in aerosol and adjust the suction resistance. Exemplarily, the suction resistance capacity of the filter segment 22 is 100Pa to 350Pa (including 100Pa and 350Pa).

[0103] In some embodiments, the shapes of the flow cross-sections of the air inlet 3a and the air passage 1a include but are not limited to circular, elliptical or polygonal (eg, square, prism or pentagon, etc.).

[0104] In some embodiments, with the plane perpendicular to the longitudinal direction as the projection plane, the projection of the filter segment 22 and the projection of the aerosol generating substrate segment 1 can both be circular, elliptical or polygonal (e.g., square, prism or pentagon, etc.). In other words, the filter segment 22 and the aerosol generating substrate segment 1 can both be cylindrical or prism-shaped, etc.

[0105] In some embodiments, the storage section 21 may be made of a temperature-resistant and hydrophobic material, including but not limited to metal materials, PLA (Polylactic Acid), PLL (poly-L-lysine), and the like.

[0106] The filter material used in the filter section 22 includes but is not limited to one or more combinations of PE (polyethylene), PLA (Polylactic Acid), PBAT (Polybutylene Adipate Terephthalate), PP (Polypropylene), acetate fiber, acrylic fiber and the like.

[0107] In one embodiment, the aerosol-generating substrate segment 1 includes plant raw materials, auxiliary raw materials, smoke-generating agent raw materials, adhesive raw materials and flavor raw materials.

[0108] The plant raw material is used to generate aerosol when heated. The auxiliary raw material is used to provide a skeleton support for the plant raw material. The smoke-generating agent raw material is used to generate a large amount of smoke when heated. The adhesive raw material is used to bond the component raw materials. The flavor raw material is used to provide a characteristic aroma. In this way, the plant raw material and the smoke-generating agent raw material can ensure the amount of aerosol generated, while the flavor raw material can enhance the release of aroma during the suction process and enhance the user experience. The auxiliary raw material can not only improve the fluidity of the mixed material, but also make the aerosol generating matrix segment 1 porous, so as to facilitate the extraction and flow of the aerosol. The adhesive raw material ensures that the plant raw material powder and the auxiliary agent constitute a stable mixture to avoid a loose structure.

[0109] In one embodiment, the plant raw material is one or more combinations of powders formed by crushing tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and aromatic plants. The plant raw material is the core source of flavor. The endogenous substances in the plant raw material can produce physiological satisfaction for the user. The endogenous substances, such as alkaloids, enter the human blood and promote the pituitary gland to produce dopamine, thereby obtaining physiological satisfaction.

[0110] In one embodiment, the auxiliary agent raw material can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Among them, the inorganic filler includes one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. The inorganic filler can provide a skeleton support for the plant raw material, and the inorganic filler also has micropores, which can increase the porosity of the aerosol generation matrix segment 1, thereby increasing the aerosol release rate.

[0111] The lubricant includes one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricant can increase the fluidity of the plant raw material powder, reduce the friction between the plant raw material powders, make the overall density of the plant raw material powder distribution more uniform, and also reduce the pressure required in the extrusion molding process and reduce the wear of the hole die.

[0112] The emulsifier includes one or more combinations of polyglycerol fatty acid ester, Tween-80, and polyvinyl alcohol. The emulsifier can slow down the loss of flavor substances during storage to a certain extent, increase the stability of flavor substances, and improve the sensory quality of the product.

[0113] In one embodiment, the smoke-generating agent raw material may include: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, glycerol, triethylene glycol, 1,3-butylene glycol and tetraethylene glycol); an ester of a polyhydric alcohol (such as triacetin, triethyl citrate, a mixture of diacetin esters, triethyl citrate, benzyl benzoate, glyceryl tributyrate); a monocarboxylic acid; a dicarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, a mixture of diacetin esters, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, glyceryl tributyrate, lauryl acetate) or one or more combinations thereof.

[0114] In one embodiment, the adhesive raw material is in close contact with the component raw material interface by wetting, generating intermolecular attraction, thereby playing the role of bonding the component raw materials such as powders, liquids, etc. The adhesive raw material can be a natural plant extract, a non-ionized modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bond the particles together, which is not easy to loosen. In addition, it improves the water resistance of the aerosol generating matrix segment 1 and is harmless to the human body.

[0115] In one embodiment, the flavor raw material is used to provide a characteristic aroma, such as a solid or liquid substance of hay aroma, roasted sweet aroma, and nicotine. The flavor raw material may include one or more combinations of tobacco, flavor plant extracts, extracts, essential oils, and absolute oils; the flavor raw material may include one or more combinations of monomer flavor substances, such as megastigmatriene, neophytadiene, geraniol, nerol, and the like.

[0116] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0117] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An aerosol generating product, characterized in that include: Aerosol generating matrix segment; The functional section is arranged at one end of the aerosol generating matrix section along the longitudinal direction, and the functional section includes a storage section, the storage section forms a storage cavity, and the two end faces of the storage section along the longitudinal direction are respectively formed with entry and exit holes, and the entry and exit holes are connected to the storage cavity.

2. The aerosol-generating article according to claim 1, wherein At least one end surface of the storage section along the longitudinal direction is a curved surface convex toward a direction away from the storage cavity.

3. The aerosol-generating article according to claim 1, wherein The aerosol generating product comprises a wrapping layer, the periphery of the aerosol generating substrate segment and the periphery of the functional segment are both wrapped with the wrapping layer, and the wrapping layer is formed with air inlet holes at a position corresponding to the storage segment.

4. The aerosol-generating article according to claim 3, wherein: Part of the outer peripheral surface of the storage section is divided into an abutment portion and a spacing portion, the spacing portion is located on one side of the abutment portion close to the aerosol generating matrix section in the longitudinal direction, the abutment portion is annular and abuts against the wrapping layer, the spacing portion and the wrapping layer are spaced from each other to form a accommodating space, and the air inlet is located at the accommodating space to communicate with the accommodating space.

5. An aerosol generating article according to claim 4, characterized in that The storage section includes a cover body and a cavity, wherein the cavity has an open mouth at one end longitudinally away from the aerosol generating substrate section, and the cover body closes the open mouth to jointly define the storage cavity, and the cover body and the cavity are both provided with the entry and exit holes on their longitudinal end faces, at least part of the outer circumference of the cover body is the abutment portion, and at least part of the outer circumference of the cavity is the spacing portion, and the lateral dimension of the portion of the cover body forming the abutment portion is larger than the lateral dimension of the cavity.

6. The aerosol-generating article of claim 4, wherein: The storage section includes a cylindrical shell and two end plates. Both ends of the cylindrical shell in the longitudinal direction have open openings. The two end plates respectively close the two open openings to form the storage cavity. The two end plates are both arc-shaped structures protruding away from the cylindrical shell. The end plates are formed with the entry and exit holes. The outer peripheral surface of the cylindrical shell is the abutment portion, and the outer peripheral surface of the end plate close to the aerosol generating matrix section is the spacing portion.

7. The aerosol-generating article of claim 3, wherein: The distance between the air inlet hole and the end surface of the aerosol generating substrate segment away from the functional segment is 17 mm to 24.5 mm.

8. The aerosol-generating article of claim 1, wherein: The functional section includes a filtering section, and the filtering section is located at one end of the storage section away from the aerosol generating matrix section in the longitudinal direction. The aerosol generating matrix section and the filtering section are both cylindrical structures, and the storage section is a rotating body structure. The aerosol generating matrix section, the filtering section and the storage section are coaxially arranged, and the longitudinal direction is the central axis direction of the aerosol generating matrix section, the filtering section and the storage section or a direction parallel to the central axis.

9. The aerosol-generating article of claim 3, wherein: The two air inlet holes form an air inlet group, and the two air inlet holes of the air inlet group are arranged along a straight line perpendicular to the longitudinal direction.

10. The aerosol-generating article of claim 3, wherein: The functional section comprises a filtering section, wherein the filtering section is located at one end of the storage section away from the aerosol generating substrate section in the longitudinal direction, and the storage section is in contact with or spaced from the filtering section at an end surface close to the filtering section in the longitudinal direction.

11. The aerosol-generating article of claim 1 , wherein: The storage section is in contact with or spaced from the aerosol-generating substrate section along the longitudinal direction near the end surface of the aerosol-generating substrate section.

12. The aerosol-generating article of claim 1, wherein: The aerosol-generating substrate segment is formed with an air channel, and the air channel penetrates at least one end surface of the aerosol-generating substrate segment in the longitudinal direction.

13. An aerosol-generating article according to claim 12, characterized in that The area of ​​the flow cross section of the air passage is equal to the area of ​​the flow cross section of the inlet and outlet holes.

14. The aerosol-generating article of claim 1, wherein: The storage cavity is provided with a flavoring substance.

15. The aerosol-generating article of claim 1, wherein: The number of access holes on at least one end surface of the storage section along the longitudinal direction is greater than 2 and less than 100.

16. The aerosol-generating article of claim 1, wherein: The hydraulic diameter of the inlet and outlet holes is 0.1 mm to 2 mm; and / or, The roughness of the cavity wall of the storage cavity is no greater than 5 μm.

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